Home / 1,606.80-2,215.70-1,429.96

Finding the Fourth Proportional to 1,606.80, 2,215.70 and 1,429.96

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Solution

The fourth proportional to 1,606.80, 2,215.70 and 1,429.96 is: 1,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.80 : 2,215.70 = 1,429.96 : x
  2. Step 2: Convert to fraction form
    1,606.80/2,215.70 = 1,429.96/x
  3. Step 3: Cross multiply
    1,606.80x = 2,215.70 × 1,429.96
  4. Step 4: Simplify right side
    1,606.80x = 3,168,362.37
  5. Step 5: Solve for x
    x = 3,168,362.37/1,606.80
  6. Step 6: Final answer
    x = 1,971.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.